# std::char_traits<char>::to_int_type, std::char_traits<wchar_t>::to_int_type, std::char_traits<char8_t>::to_int_type, std::char_traits<char16_t>::to_int_type, std::char_traits<char32_t>::to_int_type

From cppreference.com
< cpp‎ | string‎ | char traits

static int_type to_int_type( char_type c ); |  | (constexpr since C++11) (noexcept since C++11)

Converts c to `int_type`.

See CharTraits for the general requirements on character traits for `X::to_int_type`.

### Parameters

c | - | value to convert

### Return value

A value equivalent to c.

### Complexity

Constant.

### Notes

For every valid value of `char_type`, there must be a unique value of `int_type` distinct from eof().

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